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Man’s search for control of his climate has evolved from dripping of water from reeds in ancient Egypt to the aquaducts in Rome to a complete system of ‘heating, ventilation and air conditioning’ referred to as HVAC. Air Conditioning may be defined as the simultaneous control of all those factors affecting the physical and chemical conditions of the atmosphere within any structure. These factors include temperature, humidity, motion, distribution of dust, bacteria, odors and toxic gases; most of which affect human health and comfort. Air that has been properly conditioned has had one or a combination of the foregoing processes performed on it. For example, it has been heated or cooled; it has had moisture removed from it and it has been placed in motion by means of an apparatus and it has been filtered and cleaned. The impression is that refrigeration or heating cools or heats a room. The work of all the equipment is on the air within the room, not on the room itself. It is then to be looked at and remembered that the air is the vehicle of conveyance used to transport heat, cooling, and moisture from one point to another. Air is a tangible item, and every cubic foot of air occupying an area has a certain weight, depending on its temperature, the amount of moisture it is carrying and it’s altitude above sea level. The major breakthrough in technology occurred in the 1920’s making way for the current approach to air conditioning. These breakthroughs have established Air Conditioning to allow growth into Sunbelt climates. Man has evolved to control his inner structure climate. This technology was incorporated into the structure by two means. The first using the heating and cooling air flow of forced air through ducts and the second approach was the use of window and wall units. These two approaches have primarily been used since the 1920’s. Evolutionary improvements have been made over the years as new technology has evolved. In the last few years a newer approach to air conditioning has led to the Ductless Air Conditioners. A ductless split air conditioner is a cost-effective alternative to Central Air Conditioning. The Ductless system may cost more than the typical window or wall units. The ductless system, however, overcomes much of the stigma of the past with the window or wall units, for instance, appearance, noise, and blowing of the air into the room. The ductless split air conditioner is designed with the compressor sitting on the outside, making the ductless system extremely quiet and efficient. Some of the advantages of a ductless split air conditioner are cost, energy cost, flexibility and environmental concerns. Cost reduction results from the initial installation of a ductless system versus an air-duct driven system. The air-duct driven system itself causes about a 30% energy loss through the ducts or through a forced central air system. The ductless system allows you to zone your house to have certain temperature in certain zones of the house versus the same temperature throughout the house as happens using a central air conditioning approach. The zoning of your home can save in energy costs and give you more choices and benefits versus the central air approach. Environmentally, the ductless system uses the refrigerant R-410A, a hydro flurocarbon (HFC) which is environmentally friendly. Freon/R-22 (HFC) has been used as a refrigerant by Central Air Conditioner manufacturers. The R-22 contains ozone-depleting chemicals. These environmental effects are being looked at and will more than likely be challenged in the future. The R-410A being used by the ductless split air conditioner is environmentally safe. Anyone looking or considering Air Conditioning should look at the emerging ductless split air conditioner system. The advantages of the ductless systems should definitely be a consideration in purchasing of a new Air Conditioning system now or in the future. Author Bio: The Author is an expert in the field of industrial products with focus on Mini Split Air Conditioner and Wall Mount Air Conditioner in small to industrial sized.
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